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Now downloading free:PASSLAB Pass-Labs Aleph-1.2 Rev.0 sm

Download PASSLAB Pass-Labs Aleph-1.2 Rev.0 sm docs - Audio equipment,digital audio, home audio, professional audio systems service manuals and repair information

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File name:Pass-Labs_Aleph-1.2_Rev.0_sm.pdf
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Descr: . Rare and Ancient Equipment PASSLAB Audio Pass-Labs_Aleph-1.2_Rev.0_sm.pdf
Group:Electronics > Consumer electronics > Audio >
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Pass-Labs_Aleph-1.2_Rev.0_sm.pdfPass Laboratories Aleph 1.2 Service Manual Rev 0 9/20/96 Aleph 1.2 Service Manual. The Aleph 1.2 is a monoblock 200 watt audio power amplifier which operates in single- ended class A mode. The Aleph 1.2 has only two gain stages which are biased by current sources. Because of the inherent simplicity of the circuit, it is easy to understand and repair. There are no adjustments. Figure 1 shows the simplified schematic of the amplifier. Two p channel Mosfets form an input differential pair biased by a current source operating at about 20 ma. The drain of the input Mosfet is attached to the gate of an n channel power Mosfet which forms the active output stage. It is biased by a current source at 4 amps. The voltage rails of the supply are at 60 volts, and each channel draws approximately 500 watts. Figure 2 shows the actual schematic for the amplifier. F1 is a slow blow fuse

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